Determination of electromechanical eigenvalues based on analysis of different disturbance waveforms of a power system

• Autorzy: Pruski P. , Paszek S.
• Języki publikacji: EN

Abstrakty

EN

The paper presents the calculation results of the power system state matrix eigenvalues associated with electromechanical phenomena (i.e. electromechanical eigenvalues). There is compared the accuracy of eigenvalue calculations performed on the basis of the analysis of disturbance waveforms of instantaneous power, angular speed and power angle of generators of particular generating units of the power system. The method used for eigenvalue calculations consists in approximation of the disturbance waveforms of generating units with waveforms being a superposition of modal components whose parameters depend on the searched eigenvalues and their participation factors. A hybrid optimisation algorithm, being a serial combination of genetic and gradient algorithms, is used for minimisation of the objective function defined as a mean square error between the approximated and approximating waveforms. In order to increase the calculation accuracy, computations were repeated many times. The computation results were averaged.

Słowa kluczowe

EN

power system; eigenvalues associated with electromechanical phenomena; transient states; angular stability

• Wydawca: Wydawnictwo Politechniki Poznańskiej
• Czasopismo: Computer Applications in Electrical Engineering
• Rocznik: 2014
• Tom: Vol. 12
• Strony: 130--143
• Opis fizyczny: Bibliogr. 14 poz., rys., tab.

Twórcy

autor

Pruski P.

• Silesian University of Technology 44-100 Gliwice, ul. Akademicka 10

autor

Paszek S.

• Silesian University of Technology 44-100 Gliwice, ul. Akademicka 10

Bibliografia

• [1] Paszek S., Nocoń A., The method for determining angular stability factors based on power waveforms. AT&P Journal Plus2, Power System Modelling and Control, Bratislava, Slovak Republic 2008, pp. 71-74.
• [2] Cetinkaya H.B., Ozturk S., Alboyaci B., Eigenvalues Obtained with Two Simulation Packages (SIMPOW and PSAT) and Effects of Machine Parameters on Eigenvalues. Electrotechnical Conference MELECON 2004, Proceedings of the 12th IEEEMediterranean, Vol. 3, pp. 943-946.
• [3] Saitoh H., Miura K., Ishioka O., Sato H., Toyoda J., On-line modal analysis based on synchronized measurement technology. International Conference on Power System Technology, PowerCon 2002, vol. 2, pp. 817-822.
• [4] Pruski P., Paszek S.: An analysis of the accuracy of electromechanical eigenvalue calculations based on instantaneous power waveforms recorded in a power plant. Acta Energetica, no 4/2013, pp. 118-131.
• [5] Pruski P., Paszek S., Calculations of electromechanical eigenvalues based on instantaneous power waveforms. Przegląd Elektrotechniczny, no 4/2014, pp. 214-217.
• [6] Paszek S., Selected methods for assessment and improvement of power system angular stability. Silesian University of Technology Publishing House, Gliwice 2012 (in Polish).
• [7] Paszek S., Berhausen S., Boboń A., Majka Ł., Nocoń A., Pasko M., Pruski P. and Kraszewski T., Measurement estimation of dynamic parameters of synchronous generators and excitation systems working in the National Power System. Silesian University of Technology Publishing House, Gliwice 2008, (in Polish).
• [8] Paszek S., Nocoń A., Optimisation and Polyoptimisation of Power System Stabilizer Parameters. LAMBERT Academic Publishing, Saarbrücken, 2014.
• [9] Nocoń A., Paszek S., Polyoptimisation of synchronous generator voltage regulator. Silesian University of Technology Publishing House, Gliwice 2008, (in Polish).
• [10] Nocoń A., Simple method for measurement of synchronous generator load angle. XXXV International Conference on Fundamentals of Electrotechnics and Circuit Theory, IC-SPETO 2012, Gliwice - Ustroń 23-26.05.2012 (in Polish), pp. 119120.
• [11] Paszek S., Pruski P., Assessment of the power system angular stability based on analysis of selected disturbance states. Acta Energetica, no 02/2011, pp. 4453.
• [12] Power Technologies, a Division of S&W Consultants Inc., Program PSS/E Application Guide, Siemens Power Technologies Inc., 2002.
• [13] de Mello F. P., Hannett L. H., Representation of Saturation in Synchronous Machines. IEEE Transactions on Power Systems 1986, Vol. PWRS-1, November, No.4, pp. 8-18.
• [14] Majka Ł., Paszek S., Use of hybrid algorithm for estimation of generating unit mathematical model parameters. Przegląd Elektrotechniczny no 8/2010 (in Polish), pp. 70-76.